Update lock form buttons to gl-button

MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/41454

app/assets/javascripts/sidebar/components/lock/edit_form_buttons.vue

 <script>
 import $ from 'jquery';
-import { GlLoadingIcon } from '@gitlab/ui';
+import { GlButton } from '@gitlab/ui';
 import { mapActions } from 'vuex';
 import { __, sprintf } from '../../../locale';
 import { deprecatedCreateFlash as Flash } from '~/flash';
@@ -8,7 +8,7 @@ import eventHub from '../../event_hub';
 
 export default {
   components: {
-    GlLoadingIcon,
+    GlButton,
   },
   inject: ['fullPath'],
   props: {
@@ -65,19 +65,19 @@ export default {
 
 <template>
   <div class="sidebar-item-warning-message-actions">
-    <button type="button" class="btn btn-default gl-mr-3" @click="closeForm">
+    <gl-button class="gl-mr-3" @click="closeForm">
       {{ __('Cancel') }}
-    </button>
+    </gl-button>
 
-    <button
-      type="button"
+    <gl-button
       data-testid="lock-toggle"
-      class="btn btn-close"
+      category="secondary"
+      variant="warning"
       :disabled="isLoading"
+      :loading="isLoading"
       @click.prevent="submitForm"
     >
-      <gl-loading-icon v-if="isLoading" inline />
       {{ buttonText }}
-    </button>
+    </gl-button>
   </div>
 </template>

changelogs/unreleased/229343-update-lock-form-buttons.yml

+---
+title: Update lock form buttons to gl-button
+merge_request: 41454
+author:
+type: changed

spec/frontend/sidebar/lock/edit_form_buttons_spec.js

-import { shallowMount } from '@vue/test-utils';
-import { GlLoadingIcon } from '@gitlab/ui';
+import { mount } from '@vue/test-utils';
 import EditFormButtons from '~/sidebar/components/lock/edit_form_buttons.vue';
 import eventHub from '~/sidebar/event_hub';
 import { deprecatedCreateFlash as flash } from '~/flash';
@@ -22,7 +21,6 @@ describe('EditFormButtons', () => {
   };
 
   const findLockToggle = () => wrapper.find('[data-testid="lock-toggle"]');
-  const findGlLoadingIcon = () => wrapper.find(GlLoadingIcon);
 
   const createComponent = ({ props = {}, data = {}, resolved = true }) => {
     store = issuableType === ISSUABLE_TYPE_ISSUE ? createStore() : createMrStore();
@@ -33,7 +31,7 @@ describe('EditFormButtons', () => {
       jest.spyOn(store, 'dispatch').mockRejectedValue();
     }
 
-    wrapper = shallowMount(EditFormButtons, {
+    wrapper = mount(EditFormButtons, {
       store,
       provide: {
         fullPath: '',
@@ -78,8 +76,8 @@ describe('EditFormButtons', () => {
         expect(findLockToggle().attributes('disabled')).toBe('disabled');
       });
 
-      it('displays the GlLoadingIcon', () => {
-        expect(findGlLoadingIcon().exists()).toBe(true);
+      it('sets loading on the toggle button', () => {
+        expect(findLockToggle().props('loading')).toBe(true);
       });
     });
 
@@ -121,7 +119,7 @@ describe('EditFormButtons', () => {
 
           it('resets loading', async () => {
             await wrapper.vm.$nextTick().then(() => {
-              expect(findGlLoadingIcon().exists()).toBe(false);
+              expect(findLockToggle().props('loading')).toBe(false);
             });
           });
 
@@ -156,7 +154,7 @@ describe('EditFormButtons', () => {
 
           it('resets loading', async () => {
             await wrapper.vm.$nextTick().then(() => {
-              expect(findGlLoadingIcon().exists()).toBe(false);
+              expect(findLockToggle().props('loading')).toBe(false);
             });
           });